Search a number
-
+
378089 is a prime number
BaseRepresentation
bin1011100010011101001
3201012122022
41130103221
544044324
612034225
73133205
oct1342351
9635568
10378089
11239078
12162975
1310312a
149bb05
157705e
hex5c4e9

378089 has 2 divisors, whose sum is σ = 378090. Its totient is φ = 378088.

The previous prime is 378083. The next prime is 378101. The reversal of 378089 is 980873.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 218089 + 160000 = 467^2 + 400^2 .

It is a cyclic number.

It is not a de Polignac number, because 378089 - 216 = 312553 is a prime.

It is a super-3 number, since 3×3780893 = 162144933033356907, which contains 333 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 378089.

It is not a weakly prime, because it can be changed into another prime (378083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189044 + 189045.

It is an arithmetic number, because the mean of its divisors is an integer number (189045).

2378089 is an apocalyptic number.

It is an amenable number.

378089 is a deficient number, since it is larger than the sum of its proper divisors (1).

378089 is an equidigital number, since it uses as much as digits as its factorization.

378089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 378089 is about 614.8894209531. The cubic root of 378089 is about 72.3099421535.

The spelling of 378089 in words is "three hundred seventy-eight thousand, eighty-nine".